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Capital-Efficient Subsea Solutions

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The OneSubsea portfolio of capital-efficient designs supports streamlined processes, documentation, and manufacturing to deliver integrated production systems that enable achieving first oil as soon

as 24 months after contract award.

Each solution is built from a suite of preauthored quality control, material, welding, and coating specifications that simplify and

expedite our execution processes. OneSubsea works with approved vendors to ensure that they can manufacture the required

components, enabling high confidence in quality and lead time.

Months0

Contract Award

6

Wellheads and Connectors

12

Trees and Controls

18

Manifolds and Pumps

21

Jumpers

24

First Oil

Timeline of Technology Delivery

Table of Contents

WellheadsIntroduction

Since 1960, OneSubsea has developed a legacy of efficient wellhead delivery, supplying more than 1,000 wellheads around the globe.

OneSubsea can deliver standard subsea wellheads anywhere in the world within 6 months.

Click to view models and specifications

18 3/4-in WellAnchor subsea wellhead system

Introduction

Flexible Functionality

Quality Control

Materials

Welding

Lightweight corrosion cap

18 3/4-in wellhead housing

Wear bushing

18 3/4-in parallel-bore MTM seal assembly

18 3/4-in parallel-bore MTM seal assembly

13 3/8-in casing hanger

28-in casing hanger

16-in receptacle

16-in casing hanger

36-in casing

Datum

Annulus ball valve

28-in casing

20-in casing

16-in casing

13 3/8-in casing

16-in parallel-bore MTM seal assembly

Flow ring

36-in conductor housing

Flush plug

Slope indicator and bracket

Mudmat

9 5/8-in casing hanger

Explore different components of the WellAnchor system by clicking on the white hotspots.

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Wellheads

Introduction

Since 1998, more than 2,500 OneSubsea connectors have been installed in more than 80 projects worldwide for connecting flowlines and export lines.

OneSubsea can deliver standard subsea connection systems anywhere globally within 6 months.

Click to view models and specifications

■ OCS-V (4–20 in) clamp system—vertical

■ OCS-H (4–30 in) clamp system—horizontal

■ CVC (6–20 in) flowline connector—vertical

■ OSS SBC (2–3 in) small-bore connector

■ Connection capping equipment

■ Dual metal gasket (DMG)

Introduction

Flexible Functionality

Quality Control

Materials

Welding

Coating

Connectors

OCS-V (4–20 in)Clamp system—vertical

Functional Specifications ■ Simplified installation that requires no heavy running or guiding tools

■ Compact, high-load-capacity design

■ Simple makeup with no pipe deflection needed

■ Accommodation of rigid and flexible flowlines with gooseneck termination

■ 5,000- to 20,000-psi [345- to 1,379-bar] working pressure

■ Water depth rating of up to 15,000 ft [4,572 m]

■ Ability to change out subsea seal without having to retrieve jumper

■ Proprietary dual metal-to-metal (MTM) sealing technology

■ Backseat testing capability

OCS-V Connection System Specifications

Deployment System and Tooling Size

Model Nominal Pipe Size (NPS), in

Small OCS-100 4 to 6

Midsize OCS-200 OCS-300

6 to 12 (multibore)

Large OCS-500 OCS-700

12 to 20 (multibore)

OCS-H (4–30 in)Clamp system—horizontal

Functional Specifications ■ Simplified installation that requires no heavy running or guiding tools

■ Compact, high-load-capacity design

■ Configurations for monobore, multibore, and umbilical termination head variants

■ Accommodation of rigid and flexible flowlines

■ Ability to change out subsea seal, clean hub, and retrieve manifold or tree without having to retrieve jumper

■ 5,000- to 20,000-psi [345- to 1,379-bar] working pressure

■ Water depth rating of up to 15,000 ft [4,572 m]

■ Proprietary dual MTM sealing technology

■ Backseat testing capability

OCS-H Connection System Specifications

Deployment System and Tooling Size

Model NPS, in

Small OCS-100 OCS-200 OCS-300

4 to 12 (multibore)

Midsize OCS-500 OCS-700

12 to 20 (multibore)

Large OCS-1200 20 to 36 (multibore)

CVC (6–20 in)Flowline connector—vertical

Functional Specifications ■ Simple makeup that requires no

pipe deflection

■ Accommodation of rigid and flexible flowlines with gooseneck termination

■ 5,000- to 15,000-psi [345- to 1,034-bar] working pressure

■ Water depth rating of 10,000 ft [3,048 m]

■ ROV-operated tools

■ Primary MTM seal with an elastomeric backup (S-AX gasket)

■ Ability to change out subsea seal without having to retrieve jumper

CVC Connector Specifications

Size, in Pressure, psi [bar]

6 10,000 [689]

15,000 [1,034]

8 10,000 [689]

15,000 [1,034]

10 5,000 [345]

10,000 [689]

12 15,000 [1,034]

6,500 [448]

10,000 [689]

16 10,000 [689]

20 5,000 [345]

OSS SBC (2–3 in)Small-bore connector

Functional Specifications ■ Simple, easy-to-install, ROV-friendly design

■ Secondary release mechanism

■ Ability to change out subsea seal and clean hub without having to retrieve jumper

■ Up to 15,000-psi [1,034-bar] working pressure

■ Water depth rating of 10,000 ft [3,048 m]

■ Ability to be used in either horizontal or vertical orientation

■ Proprietary dual MTM sealing technology

■ Backseat testing capability

Connection Capping Equipment

Short-Term Pressure Cap Specifications

Item Description

Seal Elastomeric

Size range, in Vertical 6 to 20

Horizontal 6 to 30

Max. operating pressure, psi [bar] 20,000 [1,379]

Long-Term Pressure Cap Specifications

Item Description

Seal MTM

Size range, in Vertical 6 to 20

Horizontal 6 to 30

Max. operating pressure, psi [bar] 20,000 [1,379]

Temperature, degF [degC] -50 to 350 [-46 to 177]

API 6A material class EE, HH

Dual Metal Gasket (DMG)

Functional Specifications ■ Independently tested dual seal

■ Retained within outboard connector and can be replaced and retrieved using specialized subsea tooling

■ Elastic design capable of multiple uses

■ Suitability for HPHT applications

MTM Sealing Specifications

Item Description

Temperature, degF [degC] −50 to 350 [−46 to 177]

Sizes, in 2 to 30

Design pressure, psi [bar] Up to 20,000 [1,379]

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Connectors

Preconfigured Solutions

Guidelineless installation. Guideline-compatible installation.

Guideline-compatible installation with overtrawlable options.

TreesIntroduction

Flexible Functionality

Quality Control

Materials

Welding

Preconfigured Solutions

Coating

Flowline Hub

Diver makeup and swivel flange

OCS vertical hub OCS horizontal hub

CVC flowline connector hub

OR

OR

Standard Horizontal Tree

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Trees

ControlsIntroduction

Since 1999, OneSubsea has designed and delivered more than 900 subsea control modules in more than 50 projects worldwide.

We can deliver a complete control system solution, from topside through subsea distribution to subsea equipment mounted controls, within 12 months.

Click to view models and specifications

■ Manifold- and tree-mounted controls

■ Topside controls

■ Subsea distribution

Introduction

Flexible Functionality

Quality Control

Materials

Welding

Coating

Subsea control module.

■ Subsea control module (SCM)

■ SCM mounting base

■ Subsea accumulator module (SAM)

■ Downhole interface unit

■ Electrical and hydraulic connections

■ Various instruments

● Pressure and temperature transducer

● Acoustic sand detector

● Pig detector

● Leak detector

● Corrosion monitor

● Erosion monitor

● Single-phase and multiphase flowmeter

● Chemical injection metering valve

SCM SpecificationsElectronic reliability Dual redundancy

Hydraulic supply (dual), psi [bar]

Low pressure 3,000–5,000 [207–345]

High pressure 7,500–15,000 [517–1,034]

Functions Up to 32 hydraulic

Electrical power supply (dual), V

300–850 AC (689 nominal)

400–1,200 DC (1,100 nominal)

Electrical connection locations

Top, bottom, or side

Communication Copper wire or DSL

Instrument interfaces API 17F (Level 1, 2, 3) and Intelligent Well Interface Standardization

Downhole gauge interface card

Integrated Schlumberger

Additional cards can be accommodated

Manifold- and Tree-Mounted Controls

The OneSubsea topside controls provide you with a suite of equipment mounted on the host structure to communicate with your subsea infrastructure. The system interface is user friendly and provides the control and monitoring required for surface and subsea installed equipment. It comprises five main components:

■ Master control station (MCS)—fully redundant Linux®-based operating system with full obsolescence management, which supports all relevant interfaces like the MCS and distributed control system (DCS) interface standardization (MDIS) to the DCS

■ Electrical power unit (EPU)—fully redundant system that provides conditioned AC or DC power to the subsea infrastructure

■ Chemical injection unit (CIU)—turnkey solution for chemical delivery and distribution

■ Hydraulic power unit (HPU)

■ Topside umbilical termination assembly (TUTA).

Topside Controls

Electrical power unit. Master control station.

The OneSubsea distribution system provides you with a fully integrated subsea system to control, communicate with, and optimize your field. It is made up of six main field-proven components:

■ Umbilicals—dynamic, static, and infield umbilicals can be supplied with the required project configuration of tubes, hoses, electrical cables, and fiber optics to simplify interfaces and reduce delivery time

■ Umbilical termination assembly (UTA)—supporting sizes B and D per the standard outlined by the Umbilical Termination Size Reduction joint industry partnership, with one to four hydraulic stabplates and electrical and fiber-optic termination and distribution

■ Umbilical termination head (UTH)—umbilical termination head for direct connections of infield umbilicals to subsea structures

■ Subsea distribution unit (SDU)—modular design for up to 12 hydraulic stabplates with the capability to mount CDUs or SAMs as well as electrical distribution

■ Communication distribution unit (CDU)—highly reliable communication distribution for FO and DSL Ethernet communication, including power switching capabilities

■ Flying leads—various configurations for hydraulic, steel tube, electrical, and fiber-optic flying leads to match the layout and connection requirements.

Subsea Distribution

Subsea distribution unit.

Communication distribution unit.

Umbilical termination assembly.

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Controls

Welding

Our welding procedure for subsea manifolds conforms to API 6A, ASME IX, ASME B31.8, ASME B31.3, and NACE MR0175/ISO 15156. Adhering to proven, tested, and repeatable processes enables OneSubsea to standardize welding specifications within and across product lines and vendors provide a superior engineering design that meets or exceeds industry specifications at a lower cost deliver increased value by enhancing the product without incurring added costs.

Introduction

Flexible Functionality

Quality Control

Materials

Welding

Coating

Manifolds

Manifold Model Examples

Four-slot single-header manifold.

Four-slot single-header manifold assembly.

Six-slot single-header manifold.

Six-slot single-header manifold assembly.

Six-slot dual-header manifold with gas lift.

Six-slot dual-header manifold assembly with gas lift.

Note: Images shown are reference examples only. Manifold components can be completely configured to meet project requirements.

Configurable Production Pipework Components

Large-Bore Gate ValvesTrim FF; HH

Sizes, in 21/16; 51/8; 71/16

Pressure, psi [bar] 5,000 [345]; 7,500 [517]; 10,000 [689]

Depth, ft [m] 10,000 [3,048]

Temperature, degF [degC] −50 to 302 [−46 to 150]

Operation Manual or hydraulic

Large-Bore Ball ValvesTrim FF; HH

Sizes, in 8; 10; 12

Pressure, psi [bar] 5,000 [345]; 7,500 [517]

Depth, ft [m] 10,000 [3,048]

Temperature, degF [degC] −50 to 302 [−46 to 150]

Operation Manual or hydraulic

Large-Bore PipingTrim EE; FF; HH

Nominal sizes, in 2; 21/2; 6; 8; 10; 12

Pressure, psi [bar] 5,000 [345]; 7,500 [517]; 10,000 [689]

Header-Mounted EquipmentPart Details51/8-in CC40SRC 10,000-psi [689-bar] HH choke

51/8-in CC40SR 10,000-psi [689-bar] HH choke

21/16-in CC30SRC 10,000-psi [689-bar] FF gas choke

21/16-in CC30SR 10,000-psi [689-bar] FF gas choke

Multiphase flowmeter base

10,000-psi [689-bar] 6-in hubs

Connection EquipmentType CVC flowline connector; OCS-V; OCS-H See Standard Subsea Connection Systems brochure for more information.

A matching suite of fittings, elbows, and bends is available in nominal sizes ranging from 2 to 12 in for EE, FF, and HH trims and pressures up to 10,000 psi [689 bar].

Subassembly Components

Controls—Manifold-Mounted EquipmentPart DetailsSubsea control module mounting base

OneSubsea standard

Pressure and temperature transmitter assembly, psi [bar]

10,000 [689]; intrusive

Chemical injection metering valve (CIMV) receptacle

Low flow; medium flow; high flow

Pig detector Nonintrusive probe

Pig detector clamp Nonintrusive

Stabplates I/O logicSee Standard Subsea Control Systems brochure for more information. Integrated controls distribution optional.

Small-Bore Valves—Slab GateTrim HH

Sizes, in 3/4; 1

Pressure, psi [bar] 15,000 [1,034]

Depth, ft [m] 10,000 [3,048]

Temperature, degF [degC] −50 to 350 [−46 to 150]

Mounting Block or panel

End Four-bolt flange

Connections BX 151

Operation Manual or hydraulic

Configurable Structural Frame Components

A suite of small-bore tubing and fittings are available for various pressure classes and materials.

A custom frame will be designed to suit the header layout and field architecture needs.

Top-Level Assembly Components

Retrievable Controls EquipmentPart DetailsSubsea control module OneSubsea standard

Communication distribution unit

Various power and communication options available

CIMV Low flow; medium flow; high flow

Choke insert CC40SRC; CC30SRC; CC40SR; CC30SR

Multiphase flowmeter 6 in

Long-term covers I/O stabplate covers

Logic cap OneSubsea standardSee Standard Subsea Control Systems brochure for more information.

Connection Capping EquipmentConnector type CVC connector; OCS-V; OCS-H

Cap type Full suite of functional capping solutions available

See Standard Subsea Connection Systems brochure for more information.

Four-slot single-header manifold assembly.

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Manifolds

PumpsIntroduction

OneSubsea pumping solutions improve the economics of deepwater development by reducing backpressure on the reservoirs, thus increasing well flow rates and total recoverable reserves. Our pump modules and stations can be engineered, manufactured, and delivered globally within 18 months.

Flexible Functionality

Introduction

Quality Control

Materials

Coating

PumpsContact Information

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*Mark of Schlumberger. CVC and CHC are marks of Schlumberger.Other company, product, and service names are the properties of their respective owners.Copyright © 2017 Schlumberger. All rights reserved. 17-OSS-294096

Capital-Efficient Subsea Solutions

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